Forget Sherlock Holmes: The best-dressed detective in history is Harry Callahan, the Frisco detective who made tweed jackets look as street-tough as a .44 Magnum

The exact slim spread collar you'll find on any page of the latest GQ, with a slim tie and slim-lapeled tweed blazer to match. If Clint were gray-haired and talking to a chair, this shot could've been from a month ago.